The fire in the two-story Victorian was reported at 12:39 p.m. and the first firefighters arrived less than four minutes later, Alameda fire Capt. Jim Colburn said.

What sparked the blaze was not immediately available, It was also unclear where the fire started, although Colburn said firefighters extinguished flames in the basement and the attic.

Every Alameda firefighter who was on duty was dispatched to the neighborhood, which is a few blocks from busy Park Street and Alameda South Shore Center. Firefighters from Oakland and Alameda County also responded.

Colburn said a firefighter may have suffered a minor injury.

Officials have asked motorists to avoid the area as crews remain on scene.

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